Broker reports, page-3

Another treat here for the faithful..

15 year mine life.
Production 290kozpa.
POX capital A$150m. Pre-production capex of A$450m.
Effective A$ gold price A$2,142.
NPV $1.5bn.

I believe Nord has been saying $1bn for POX (is that just the POX circuit). Either way, someone is a long way from the money. Even if it is somewhere in between, the likely size of Hemi and surrounding deposits should make the upfront capital spend justifiable.
Clearly the gold price they are assuming is extremely conservative, as is potentially the grade. Perhaps some downside to NPV associated with capital costs, if being conservative but as I said the scale should make almost any number viable.